From 5dc0c8aac0c1469270779d399ecdd7dcdbd53247 Mon Sep 17 00:00:00 2001
From: Dmitry Butyugin <dmbutyugin@google.com>
Date: Tue, 7 Jul 2020 20:46:45 +0200
Subject: [PATCH] input_shaper: Fixed C module compilation on older gnu90
 compilers

For example, Raspbian GNU/Linux 8 (jessie) uses an old GCC version 4.9.2
which uses -std=gnu90 by default.

Signed-off-by: Dmitry Butyugin <dmbutyugin@google.com>
---
 klippy/chelper/kin_shaper.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/klippy/chelper/kin_shaper.c b/klippy/chelper/kin_shaper.c
index d79a9561..9dcf91a3 100644
--- a/klippy/chelper/kin_shaper.c
+++ b/klippy/chelper/kin_shaper.c
@@ -50,7 +50,8 @@ calc_position(struct move *m, int axis, double move_time
               , struct shaper_pulse *pulses, int n)
 {
     double res = 0.;
-    for (int i = 0; i < n; ++i)
+    int i;
+    for (i = 0; i < n; ++i)
         res += pulses[i].a * get_axis_position_across_moves(
                 m, axis, move_time + pulses[i].t);
     return res;